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प्रश्न
Write a short answer.
Why is a cell called the structural unit of a living organism?
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उत्तर
A cell is called the structural unit of life because all living organism irrespective of their size, shape, and complexity are made up of cells and functions performed by the organism is the result of the activity of the cells in its body.
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संबंधित प्रश्न
Write short notes on the following.
Cytoplasm
Differences between light microscope and electron microscope.
Who coined the term “cell” ?
Match the name of the organelle given in Column A with its function given in Column B.
| Column A (Organelle) | Column B (Function) | ||
| 1 | leucoplast | a | help in cell division |
| 2 | nucleus | b | transport of material |
| 3 | ribosomes | c | making food |
| 4 | mitochondria | d | digesting foreign bodies |
| 5 | endoplasmic reticulum | e | storage of starch and proteins |
| 6 | golgi bodies | f | making the cell turgid |
| 7 | chloroplast | g | making proteins |
| 8 | centrosome | h | controlling all the vital activities of a cell |
| 9 | vacuole | i | releasing energy |
| 10 | lysosomes | j | synthesis of cell wall in a plant cell |
What is cell theory? Name the three scientists whose work led to the formulation of the cell theory.
Justify the statement "cell is the basic unit of life"
What was the contribution of the following to our knowledge of cells?
Robert Hooke
What is the function of the following?
Mitochondria
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I take part in food production of a cell. Who am I? ____
